I haven't listened to Percy Hill in a million years. There was a time in mid-90's where they were stuck in my CD player. I used to have a bunch of bootlegs of them. My good friend, RIP, was Joe's brother.
Last I heard, they broke up, but I thought that was in 1999.
They reformed in early 2000's and had a relatively big comercial cd, like #1 jammy award. Much jazzier. I'd be happy to send you a copy. If interested, email an address at jodymcollins at sbcglobal dot net